I removed the sudo,the I have no permission to install any program?

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Problem :

It’s seems like a big problem. I can’t login as root, because I use the fedora20, and I can not use sudo. What can I do now ?

Solution :

su authentication failure, sudo missing

You can use pkexec yum install sudo. pkexec will let you enter your password in your OS’s GUI.

pkexec allows an authorized user to execute PROGRAM as another user.
If username is not specified, then the program will be executed as the
administrative super user, root.

This helped:


Source https://unix.stackexchange.com answer su authentication failure, sudo missing by portOdin

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